EP 0417986 A2 19910320 - Telephone system.
Title (en)
Telephone system.
Title (de)
Telefonsystem.
Title (fr)
Système de téléphonie.
Publication
Application
Priority
FI 894371 A 19890915
Abstract (en)
The invention relates to a telephone system with which a connection between two subscribers can be established, at least one of them being a mobile subscriber. The system includes a paging network composed of one or several extensive paging ranges, each of them having a paging transmitter (Hl,H2) of its own, a small cellular network with an exchange and a plurality of base stations (T), and mobile telephones with which a pager has been integrated. When calling a mobile telephone, the transmitter of the paging range in which the telephone is known or assumed to be transmits a paging message to the telephone, whereby, when the telephone is in the neighbourhood of the base station, the exchange of the cellular network establishes immediately a connection between the subscribers. No paging calls are lost because they are stored in the exchange of the cellular network, and on an appropriate occasion the pager of the telephone and the exchange compare the paging messages stored in the memories. In the disclosed system the call can be transmitted from one base station to another during the call (handover).
IPC 1-7
IPC 8 full level
H04W 68/00 (2009.01)
CPC (source: EP US)
H04W 68/00 (2013.01 - EP US); Y02D 30/70 (2020.08 - EP)
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0417986 A2 19910320; EP 0417986 A3 19920513; EP 0417986 B1 19960110; AT E133020 T1 19960115; CA 2024702 A1 19910316; CA 2024702 C 20010904; DE 69024725 D1 19960222; DE 69024725 T2 19960530; ES 2083433 T3 19960416; FI 894371 A0 19890915; FI 894371 A 19910316; US 5175758 A 19921229
DOCDB simple family (application)
EP 90309786 A 19900906; AT 90309786 T 19900906; CA 2024702 A 19900905; DE 69024725 T 19900906; ES 90309786 T 19900906; FI 894371 A 19890915; US 57981490 A 19900904